Knowde Enhanced TDS
Identification & Functionality
- Carrier
- INCI Name
- Ingredient Origin
- Cosmetic Ingredients Functions
- Technologies
- Chemical Structure
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Fig: Cross-linked network of DOWSIL(TM) 9040 Silicone Elastomer Blend.
Features & Benefits
- Benefit Claims
- Labeling Claims
- Product Highlights
- Compatible with a variety of lipophilic active ingredients such as fragrances, sunscreens, vitamins, and vitamin derivatives
- Clear to slightly translucent cross-linked silicone elastomer gel
- Easy to formulate
- Acts as a thickening agent for water-in-oil and water-in-silicone formulations and silicone fluids
- Slight sebum absorption
- Provides dry smoothness and a light silky skin feel non-greasy
- Enhances the esthetics of volatile silicones
- Reduces tackiness of formulations
- Quick absorption
- Cold processing
- The stability of vitamin derivatives such as Vitamin A Palmitate is improved when pre- mixed with DOWSIL(TM) 9040 Silicone Elastomer Blend prior to incorporation into a finished formulation
Applications & Uses
- Markets
- Applications
- AP/Deo Applications
- Treatment Product Applications
- Applications
- Skincare
- Hair care
- Many other potential formulations
- Application Information
Disperse the oil-phase into DOWSIL(TM) 9040 Silicone Elastomer Blend using simple mixing. There is no need for post-shearing. DOWSIL(TM) 9040 Silicone Elastomer Blend provides cyclopentasiloxane which has already been thickened and can provide a novel form of delivery for other formulation components. Thickening of formulations can be achieved using a cold process.
- Formulation Tips
DOWSIL(TM) 9040 Silicone Elastomer Blend may be formulated into oil-in-water emulsions, water-in- silicone emulsions, water-in-oil emulsions and anhydrous products.
- It may be added to the oil phase or silicone phase in an emulsion formulation.
- It may be post-added to emulsions provided the emulsion is viscous enough for the DOWSIL(TM) 9040 Silicone Elastomer Blend to be dispersed.
- For ease of use, its viscosity may be reduced by blending with dimethicone or cyclomethicone.
- It may be formulated with organic oils and silicon-based materials with the use of mixers and may be subjected to high shear devices such as homogenizers and sonolators.
- It is dispersible in a variety of liquid oils (refer to compatibility chart on page 4).
- Because the elastomer is stable, DOWSIL(TM) 9040 Silicone Elastomer Blend may be subjected to heat for a short duration. When heat is used, the material should be processed in an enclosed vessel to prevent the cyclopentasiloxane from volatilizing; the vessel should be inerted at temperatures over 60°C (140°F).
- Processing
DOWSIL(TM) 9040 Silicone Elastomer Blend is a viscous product but has the unique characteristic of being a shear-thinning material.
The following information will aid in the selection of the proper equipment to use when processing DOWSIL(TM) 9040 Silicone Elastomer Blend out of a drum.
- Pump Recommendation
GRACO BULLDOG 10:1 Pump with follower plate.
Customer-specific Pump Design Considerations
- Pressure and flow requirements
- Air supply pressure: Will depend on the plant's air supply capabilities.
- Discharge pressure: Will depend on total pressure required to move the silicone elastomer blend from point A to point B. Pressure drops due to elevationand , frictional losses within the piping, fittings, valves, filters, etc., will need to be considered.
- Flow requirements: Will depend on how quickly the user wishes to transfer the silicone elastomer blend from a 208 liter (55 gal) drum into a vessel.
- Material viscosity in cP at the application temperature DOWSIL(TM) 9040 Silicone Elastomer Blend is shear thinning. Effective viscosity is 80,000-100,000 cP. This is only an example; it is the responsibility of the user to determine the effective viscosity based on the users application. Once the material is pushed through the pump by the follower plate and processed in the pump, the product will shear thin and process as a lower-viscosity fluid.
- Construction material for wetted parts - Stainless steel is recommended but carbon steel may also be used.
- Construction materials for seals and gaskets. VITON or TEFLON materials are recommended. Please contact Dow for alternatives.
- Pressure and flow requirements
- Clean-up
XIAMETER(TM) PMX-0245 Cyclopentasiloxane, which dilutes the viscosity of DOWSIL(TM) 9040 Silicone Elastomer Blend to water thin, is recommended for soaking or cleaning equipment. Other non-polar solvents may work as well.
- Limitations
This product is neither tested nor represented as suitable for medical or pharmaceutical uses.
Properties
- Physical Form
- Appearance
- Crystal clear to slightly translucent gel. May have slight yellow or brownish color. Free of particulate matter.
- Typical Properties
- Compatibility
Wt % DOWSIL(TM) 9040 Silicone Elastomer Blend: 10 50 90 Material Water Not Compatible Not Compatible Not Compatible Triglycerides Not Compatible Not Compatible Not Available Solvents Ethanol Not Compatible Not Compatible Compatible Propylene glycol Not Compatible Not Compatible Compatible Isopropyl alcohol Not Compatible Not Compatible Compatible Acetone Not Compatible Not Compatible Compatible Fatty Esters Isopropyl myristate Compatible Compatible Compatible Octyl palmitate Compatible Compatible Compatible Hydrocarbons Mineral oil Not Compatible Not Compatible Compatible Isododecane Compatible Compatible Compatible Silicones XIAMETER(TM) PMX-0244 Cyclopentasiloxane Compatible Compatible Compatible XIAMETER(TM) PMX-0245 Cyclopentasiloxane Compatible Compatible Compatible XIAMETER(TM) PMX-0344 Cyclopentasiloxane Blend Compatible Compatible Compatible XIAMETER(TM) PMX-0345 Cyclopentasiloxane Blend Compatible Compatible Compatible XIAMETER(TM) PMX-200 Silicone Fluid 5–30000 cSt Compatible Compatible Compatible DOWSIL(TM) 556 Cosmetic Grade Fluid Compatible Compatible Compatible
Value | Units | Test Method / Conditions | |
Viscosity | 250,000 - 580,000 | mm²/s | — |
Specific Gravity | 0.96 | — | — |
Non-Volatile Content | 12.0 - 12.75 | % | — |
Cyclotetrasiloxane (D4) Content | max. 1 | % | — |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Technical Data
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Figure 2: Thickening Effect. *Brookfield DVII spindle RV-07 at 5 rpm.
Figure 3: Absorption of Sebum. Results significant at 90% confidence level; control: untreated skin *Sebumeter SM 180
Figure 4: Volatility of Cyclopentasiloxane from Elastomer Blend
Figure 5: Stress Sweeps for Two Elastomer Blends
Figure 6: Stress Ramps (0–5,000 dynes/cm2) for DOWSILTM 9040 Silicone Elastomer Blend at Elastomer Levels 1. Diluted with XIAMETERTM PMX-0245 Cyclopentasiloxane
Packaging & Availability
- Regional Availability
- Packaging
- This product is available in 15 kg and 180 kg.
- Samples are available in 400 g.
Storage & Handling
- Shelf Life
- 24 months
- Storage Conditions
When stored at or below 60°C (140°F) in the original unopened containers, this product has a usable life of 24 months from the date of production.